CVE-2026-80924

High

In the Linux kernel, the following vulnerability has been resolved: crypto: krb5 - use kfree_sensitive() for derived key buffers crypto_krb5_prepare_encryption() and crypto_krb5_prepare_checksum() free the buffer holding the freshly derived keys with plain kfree(), leaving the key material behind in the freed slab object.

Package Linux Kernel
Published 2026-09-09
Last modified 2026-09-10
CVSS version 3.1
Patch available
Yes

CVSS 3.1 score

7.5

out of 10
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected versions

Linux kernel versions 6.15 and later are affected. Fixed in 6.18.49, 7.1.13, 7.2.3, 7.3-rc1 and their respective stable series.

Affected from
≥ 6.15
Fixed in
✓ 6.18.49 6.18.x ✓ 7.1.13 7.1.x ✓ 7.2.3 7.2.x ✓ 7.3-rc1

References

4 total

Frequently asked questions

  • What is CVE-2026-80924?

    CVE-2026-80924 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 . It affects Linux kernel versions from 6.15 onward and has been patched in 6.18.49, 7.1.13, 7.2.3 and others. CVE-2026-80924 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2026-80924?

    CVE-2026-80924 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N .

  • Is there a patch available for CVE-2026-80924?

    Yes. CVE-2026-80924 has been patched. Fixed versions include 6.18.49, 7.1.13, 7.2.3 and others. If you are running Linux kernel 6.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-80924 actively exploited?

    No. CVE-2026-80924 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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